Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: georgethewelder on August 21, 2015, 06:56:32 PM

Title: Plasma help please
Post by: georgethewelder on August 21, 2015, 06:56:32 PM

Hello all
I have a fairly new 5'X10' CNC plasma table I am doing pretty well drawing in auto cad (self taught just keep trying stuff ) but now I want to cut 6'' donuts with about a four inch hole and the sides don't come out even any body can help me ?

                                                                                                        Thanks
                                                                                           George

Title: Re: Plasma help please
Post by: BR549 on August 22, 2015, 10:18:11 AM

IF the circles look ROUND in CAD and look round in CAM and look round in the control toolpath then it is a machine problem. It could be backlash OR axis calibration.  OR both.

(;-) TP

Title: Re: Plasma help please
Post by: Davek0974 on August 22, 2015, 01:16:51 PM

Is it belt drive, direct drive, screw drive???

Check for slack belts, loose pinions(not always easy to find), loose pulleys etc first

I would then carry out axis step calibration on all axes.

Does the error get worse the more you run - loosing steps or is it just wrong all the time - see above.


Dave